In Dutch oven,add vegetable oil to a depth of 2-inches(5 cm). Heat over medium-high heat until temperature reaches 350°F(180°C). In a mixing bowl,combine egg,flour and 2 tablespoons of cornstarch.Mix well. Add to mixture soda water and mix until blended. Spread remaining 3 tablespoons of cornstarch on a plate and dredge shrimp on it. Dip shrimp …